Hello everyone, I almost got all the parts to this problem:(adsbygoogle = window.adsbygoogle || []).push({});

In an RC series circuit, = 11.0 V, R = 1.10 M, and C = 1.80 µF.

(a) Calculate the time constant.

1.98 s

(b) Find the maximum charge that will appear on the capacitor during charging.

19.8 µC

(c) How long does it take for the charge to build up to 9.0 µC?

s

I tried the following:

q(t) = Q[1-e^(-t/RC)]

q(t) = 9.0e-6[1-e^(-1.98)] = 7.75e-6s, which is wrong;

Since i know t = RC, and i found RC = 1.98, would it be

q(t) = 9.0e-6[1-e^(-1)] ?

I just tried this and its also wrong.

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# Homework Help: Ow long does it take for the charge to build up to 9.0 µC? RC circuits

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